Home / 728,446,800.81-1,004,621,282.78-516,334,083.69

Finding the Fourth Proportional to 728,446,800.81, 1,004,621,282.78 and 516,334,083.69

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Solution

The fourth proportional to 728,446,800.81, 1,004,621,282.78 and 516,334,083.69 is: 712,090,723.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,446,800.81 : 1,004,621,282.78 = 516,334,083.69 : x
  2. Step 2: Convert to fraction form
    728,446,800.81/1,004,621,282.78 = 516,334,083.69/x
  3. Step 3: Cross multiply
    728,446,800.81x = 1,004,621,282.78 × 516,334,083.69
  4. Step 4: Simplify right side
    728,446,800.81x = 518,720,209,497,102,016
  5. Step 5: Solve for x
    x = 518,720,209,497,102,016/728,446,800.81
  6. Step 6: Final answer
    x = 712,090,723.61

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.